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BATTERY DIAGNOSIS APPARATUS AND BATTERY DIAGNOSIS METHOD

Resumen de: US20260266908A1

Disclosed is a battery diagnosis apparatus and a battery diagnosis method. The battery diagnosis apparatus includes a processor configured to control a stimulation application device to intermittently apply a second electric stimulation that is greater than a first electric stimulation to a target cell during a state change period, and a communication unit configured to obtain current time series data during the state change period and voltage time series data representing a change history of a full-cell voltage of the target cell during rperiods of rest between the intermittently applied second electric stimulation given in the state change period. The processor generates a measurement full-cell profile based on the current time series data and the voltage time series data, and analyzes the measurement full-cell profile to estimate a negative electrode participation start point.

BATTERY CELL SUITABLE FOR SECONDARY BATTERY, AND SECONDARY BATTERY USING SAME

Resumen de: AU2024468972A1

A battery cell suitable for a secondary battery, comprising at least one composite electrode unit. The composite electrode unit comprises a positive electrode sheet and a negative electrode sheet; the positive electrode sheet comprises a first positive electrode active coating (4), the negative electrode sheet comprises a first negative electrode active coating (2), and the first positive electrode active coating (4) and the first negative electrode active coating (2) are stacked with an isolating coating (3) interposed therebetween; the length and width of the first negative electrode active coating (2) are respectively greater than the length and width of the first positive electrode active coating (4); and the isolating coating (3) comprises an inorganic material and a polymer, wherein the proportion of the inorganic material in the isolating coating (3) is not less than 70 wt%, the dielectric constant of the inorganic material is not less than 8, and the average particle diameter D50 of the inorganic material ranges from 0.2 to 5 μm.

THERMAL RUNAWAY SUPPRESSION DEVICE AND METHOD FOR ENERGY STORAGE CONTAINER

Resumen de: AU2025256716A1

A thermal runaway suppression device and method for an energy storage container. The device comprises a fire extinguishing agent storage tank (2) arranged on the inner side or the outer side of a container body (1); a plurality of batteries (3) are arranged in the container body; an output end of the fire extinguishing agent storage tank is respectively connected to one end of a fire detection pipe (5) and one end of a release pipe (6) by means of a cylinder valve (4); a detection box (8) is arranged above a pressure relief valve (7) of each battery; the plurality of detection boxes are connected to each other, and one of the detection boxes is communicated with the other end of the fire detection pipe; the detection boxes and the fire detection pipe are filled with inert gas; the other end of the release pipe extends and surrounds the batteries; and a plurality of nozzles (9) are arranged on the surface of the release pipe. The present device has a simple structure, does not require a corresponding electric control mechanism to maintain normal operation of a fire extinguishing device, has low costs, and is favorable for application and popularization in the field of energy storage.

BATTERY PACK

Resumen de: US20260269419A1

A battery pack includes a support assembly which defining a plurality of first pressure relief holes. A first heat insulating member is connected to the support assembly. A plurality of cells is arranged on a side of the first heat insulating member away from the support assembly. An explosion-proof valve of each of the plurality of cells faces a respective one of the plurality of first pressure relief holes. A second heat insulating member is connected to a side of the support assembly away from the first heat insulating member. At least one of the first heat insulating member and the second heat insulating member seals the plurality of first pressure relief holes.

ENERGY STORAGE DEVICE

Resumen de: WO2026184194A1

The present application provides an energy storage device. The energy storage device comprises a battery pack and an energy storage inverter; the battery pack comprises a battery body and a first cooling component, and the first cooling component is configured to adjust the temperature of the battery body; the energy storage inverter comprises an inverter body and a second cooling component, and the second cooling component is configured to adjust the temperature of the inverter body; and a liquid cooling unit is connected to the first cooling component to form a first cooling loop, and is connected to the second cooling component to form a second cooling loop, the first cooling loop and the second cooling loop being independent of each other.

BATTERY CELL, LITHIUM-ION BATTERY AND ELECTRICAL APPARATUS

Resumen de: WO2026184254A1

Provided in the embodiments of the present application are a battery cell, a lithium-ion battery, and an electrical apparatus. The battery cell comprises an electrolyte, the electrolyte comprising a carboxylic ester solvent; the battery cell comprises a positive electrode sheet, the positive electrode sheet comprising a positive electrode active material, and the positive electrode active material comprising a lithium transition metal oxide; and the IMP internal resistance of the battery cell satisfies: 0.2 mΩ≤RIMP≤2 mΩ. The battery cell has good overcharge resistance and cycle performance.

Verfahren und Vorrichtung zur Sicherheitsprüfung von Leistungsbatterien, Endgerät, Medium

Resumen de: DE102026103217A1

Die vorliegende Anmeldung offenbart eine Vorrichtung und ein Verfahren zur Sicherheitsprüfung von Leistungsbatterien, ein Endgerät und ein Medium. Die Vorrichtung umfasst eine Basis, einen geschlossenen kugelförmigen Tank, eine Testplattform, einen Portalrahmen und ein Steuermodul. Der geschlossene kugelförmige Tank umfasst einen oberen Teil und einen unteren Teil des kugelförmigen Tanks. Die Testplattform befindet sich im Inneren des unteren Teils des kugelförmigen Tanks. Eine Befestigungsplattform für die Batterie der Testplattform ist im Kugelmittelpunkt des unteren Teils des kugelförmigen Tanks angeordnet. Die Sensorhalterung ist umlaufend um die Befestigungsplattform für die Batterie angeordnet und in verschiedenen Richtungen jeweils mit Sensoren ausgestattet. Das Steuermodul ist in der Lage, einen Betriebsmodus eines Auslösungsmoduls zur Induktion eines Batterieversagens zu steuern, um ein thermisches Durchgehen einer zu prüfenden Batterie zu erzeugen, und auf Basis der überwachten Werte der Sensoren sowie einer entsprechenden Gewichtung dieser Werte einen Sicherheitswert der zu prüfenden Batterie zu bestimmen. Die Vorrichtung der vorliegenden Anmeldung ermöglicht durch Verwendung einer kugelförmigen Begrenzung sowie Sensoren an verschiedenen Positionen eine direkte und vollumfängliche Überwachung der Verteilung der verschiedenen überwachten Werte während eines Batterieversagens. Auf diese Weise ergibt sich ein Sicherheitswert mit hoher Zuverlässigke

SAFETY VALVE, EXTERIOR BODY, AND BATTERY

Resumen de: US20260269418A1

A safety valve includes a middle section formed in a rectangular shape at a depressed section of an exterior body, one end section that is continuous with the middle section at the depressed section and is formed in a semicircular shape on the side of one end of the middle section along a first direction (longitudinal direction X), and another end section that is continuous with the middle section at the depressed section and is formed in a semicircular shape on the side of another end of the middle section along the first direction. A first groove and a second groove of the safety valve are formed in linear shapes, a third groove and a fourth groove of the safety valve are formed in arcuate shapes, and the thickness of the first groove is thicker than the thickness of the second groove, the third groove, and the fourth groove.

ELECTROLYTE, SECONDARY BATTERY AND ELECTRONIC DEVICE

Resumen de: WO2026184327A1

The present application relates to an electrolyte, a secondary battery, and an electronic device. Specifically, the present application provides an electrolyte. The electrolyte comprises propylene carbonate, propyl propionate, succinonitrile, and 1,3,6-hexanetricarbonitrile. Based on 100 parts by mass of the electrolyte, the propylene carbonate is 14 to 20 parts by mass, the propyl propionate is 10 to 55 parts by mass, the succinonitrile is 0.3 to 4 parts by mass, and the 1,3,6-hexanetricarbonitrile is 1 to 6 parts by mass. The present application can improve the low-temperature discharge performance and over-temperature safety performance of a secondary battery.

Battery Cell Assembly

Resumen de: US20260269415A1

A battery cell arrangement including a battery tray 2 arranged on the underside in the installation position, designed to hold several battery cells 4 arranged next to each other, a battery cell holder 6 acting as a holding element with several battery cell receptacles designed to hold the battery cells 4 inserted into them, a contact carrier 10 arranged on top of the battery cells and comprising contacts for electrical connection to battery cells 4, and a casting resin 8 insertable into the battery tray 2 to enclose the battery cells 4 in the battery cell holder 6 and, if necessary, the contact carrier 10. To reduce throughput times, the battery cell holder 6 is designed as a shell-like battery cell holder shell open at one end, which has a closed holder plane that acts as a mounting surface and is spaced from the open end by a holder edge. The battery cell receptacles include battery cell holder jacket surfaces designed as stubs, and an intermediate section 61 is formed between two adjacent battery cell holder shell surfaces.

POLYAMIDE MOLDING COMPOSITION WITH ENHANCED FIRE RESISTANCE

Resumen de: US20260265470A1

A polyamide molding composition including at least one polyamide (PA), glass fibers (GFs), and at least one flame retardant (FR), wherein a time of failure (tF) of the composition is at least 5.0 min, preferably at least 6.0 min, more preferably at least 10.0 min, and to a polyamide molding composition including at least one PA, GFs, and at least one FR, wherein the distribution of the lengths of the GFs is characterized by an arithmetic average length (Lav) of 220 μm or more; and the proportion of the GFs having a length higher than 400 μm is at least 20% (in numbers). An article including said composition, and to use of the glass fibers and a flame retardant in improving thermal resistance of a polyamide molding composition.

HIERARCHICAL NETWORK CATHODE MATERIALS FOR LITHIUM-SULFUR BATTERIES AND METHODS FOR MAKING THE SAME

Resumen de: US20260269218A1

A lithium-sulfur positive electrode material that can be incorporated into a lithium-sulfur battery includes a sulfur host material configured to receive a sulfur electroactive material that cycles lithium ions. The sulfur host material includes a fibrous carbonaceous network, an electroactive metal associated with the fibrous carbonaceous network, and a plurality of carbon nanotubes formed on the fibrous carbonaceous network. Methods of making a lithium-positive electrode material may include forming a porous membrane from aramid nanofibers, contacting a salt including the electroactive metal with it, contacting a plurality of zeolitic imidazolate framework-67 particles with it, pyrolyzing to form a fibrous carbonaceous network having the electroactive metal, and then forming a plurality of carbon nanoparticles on a plurality of sites in the fibrous carbonaceous network.

ELECTROMECHANICAL APPARATUS, SYSTEM FOR REGENERATING SUCH AN APPARATUS AND CORRESPONDING METHOD

Resumen de: US20260268286A1

An electromechanical device, such as a stick vacuum cleaner, a regenerating system and methods are disclosed. The electromechanical device includes a central structure in which at least one electronic device is assembled and, electrically connected to at least one electromechanical device. The at least one electronic device being capable of supplying electrical power and controlling said at least one electromechanical device. These devices are arranged in the form of modules assembled in the central structure and are electrically or functionally connected to each other without tools and in such a way as to be directly operational after their assembly in the central structure.

TIN-CARBON COMPOSITE MATERIAL, AND PREPARATION METHOD THEREFOR AND USE THEREOF

Resumen de: WO2026183950A1

The present invention belongs to the technical field of energy storage batteries. Provided are a tin-carbon composite material, and a preparation method therefor and the use thereof. The tin-carbon composite material comprises porous hard carbon containing mutually communicating pore channels and carbon-coated tin nanodots in the pore channels. The suitable pore channel structure cooperates with the carbon-coated tin nanodots in the pore channels to synergistically improve the electrochemical performance of the tin-carbon composite material; and the capacity, initial coulombic efficiency, cycle life and fast charging performance of a sodium-ion battery assembled by using the tin-carbon composite material as a working electrode are optimized.

PCS, ENERGY STORAGE SYSTEM AND POWER REPLENISHMENT METHOD THEREFOR

Resumen de: WO2026184302A1

Provided in the present application are a PCS, an energy storage system and a power replenishment method therefor. Four bridge arms connected in parallel are provided in the PCS, the midpoints of the four bridge arms being respectively connected in series to inductors and then connected to four alternating-current ports, and the four alternating-current ports being used for connecting to one of phase lines or a neutral line of a power grid. In this way, when two of the four alternating-current ports are connected to the power grid, by controlling the operation of the bridge arms connected to the two alternating-current ports that are connected to the power grid, the PCS can be controlled to operate so as to replenish power to the energy storage system. In addition, when three of the four alternating-current ports are connected to three phase lines of a three-phase power grid, and when the four alternating-current ports are connected to three phase lines and a neutral line of a three-phase four-wire system, the PCS can also operate to replenish power to the energy storage system, such that the energy storage system can undergo power replenishment when connected to a power grid of any system, thereby improving the adaptability of power replenishment for the energy storage system.

CHARGING CONTROL METHOD, APPARATUS, POWER ADAPTER, STORAGE MEDIUM AND PROGRAM PRODUCT

Resumen de: WO2026184484A1

Provided are a charging control method, an apparatus, a power adapter, a storage medium and a program product. The power adapter can measure, on the basis of a periodically acquired charging voltage, the battery level of a device to be charged in the process of charging said device in a fast charging mode, and can exit the fast charging mode and end the fast charging of said device when it is detected that the battery level reaches a preset protection capacity threshold.

ELECTRODE STRUCTURE AND SECONDARY BATTERY

Resumen de: US20260269311A1

An electrode structure includes a solid electrolyte layer and a pair of electrode layers disposed to sandwich the solid electrolyte layer. The solid electrolyte layer includes a composite of a first phase composed of an oxide-based ion conductor and a second phase composed of an amorphous-phase-containing ion conductor that contains an amorphous phase at least in part. The oxide-based ion conductor has an ionic conductivity higher than an ionic conductivity of the amorphous-phase-containing ion conductor. The amorphous-phase-containing ion conductor has a Young's modulus lower than a Young's modulus of the oxide-based ion conductor. The pair of electrode layers includes a negative electrode layer composed of a porous body in which pores are formed. The second phase is interposed in at least a part between the negative electrode layer and the first phase.

LITHIUM IRON PHOSPHATE MATERIAL AND PREPARATION METHOD THEREFOR AND USE THEREOF

Resumen de: WO2026184043A1

Provided in the present application are a lithium iron phosphate material and a preparation method therefor and the use thereof. A first aspect of the present application provides a preparation method for a lithium iron phosphate material. The preparation method comprises the following steps: adding an iron powder and a reducing agent to phosphoric acid for a first reaction, so as to obtain a mixed solution; adding an iron oxide and a lithium source to the mixed solution for a second reaction, so as to obtain a lithium iron phosphate precursor; and sintering the lithium iron phosphate precursor, so as to obtain a lithium iron phosphate material. The mixed solution comprises ferrous dihydrogen phosphate and phosphoric acid, and the lithium iron phosphate precursor comprises lithium dihydrogen phosphate, ferrous hydrogen phosphate and iron oxides. The ferrous hydrogen phosphate and the iron oxides have different morphologies, thereby realizing the mixing of large and small particles and the formation of a denser packing structure, and as a result, the lithium iron phosphate material exhibits both a high tap density and a high rate performance.

Lithium Secondary Battery

Resumen de: US20260269317A1

Provided is a lithium secondary battery including a positive electrode; a negative electrode; a separator disposed between the negative electrode and the positive electrode; and a non-aqueous electrolyte, wherein the negative electrode includes a negative electrode active material, the negative electrode active material includes a silicon-based active material, and the non-aqueous electrolyte includes a lithium salt, fluoroethylene carbonate, 1,2-difluoroethylene carbonate, and a coumarin-based compound of Formula 1:wherein R1 and n are described herein.

Secondary Battery

Resumen de: US20260269431A1

A secondary battery including an electrode; an electrode tab including an extension portion extending outward from the electrode and a tab coupling portion provided on one side of the extension portion in the extension direction; an electrode lead coupled to the tab coupling portion and capable of electrically connecting the electrode to the outside; and an auxiliary connecting member coupled to the electrode lead and the extension portion, respectively, is provided.

Battery Pack and Device Including the Same

Resumen de: US20260269357A1

A battery pack includes: a battery cell stack in which a plurality of battery cells are stacked along one direction; a pack frame that houses the battery cell stack; and a thermal resin plate located between the battery cell stack and the bottom portion of the pack frame. The thermal resin layer is formed by applying a thermal resin and is located on one surface of the thermal resin plate. The battery cell stack is fixed to the thermal resin layer. The thermal resin plate is detachably coupled to the pack frame.

BATTERY CELL, BATTERY MODULE INCLUDING THE SAME, BATTERY PACK INCLUDING THE SAME AND VEHICLE INCLUDING THE SAME

Resumen de: US20260269390A1

A battery cell includes an electrode assembly including a first electrode plate having a first polarity, a second electrode plate having a second polarity and a separator interposed between the first electrode plate and the second electrode plate; an electrode lead connected to the electrode assembly; a cell case accommodating the electrode assembly, and on which the electrode lead is supported, the cell case having a sealing portion; and an internal pressure uniformization member coupled to at least part of the sealing portion of the cell case. A battery module, a battery pack, and a vehicle, each having the battery cell are provided.

MOTOR VEHICLE TRACTION BATTERY PROVIDED WITH A VALVE PROTECTION COVER

Resumen de: US20260269396A1

The invention relates to a motor vehicle traction battery (20) comprising:—a tray (22) containing battery cells;—at least one valve (38, 40) arranged in a vertical wall (30) of the tray (22);—and a protective cover (54) secured against an outer face (58) of the vertical wall (30) and covering the at least one valve (38, 40); characterised in that the cover (54) comprises at least one lower rim (62) having a free end edge (63) in contact with the outer face (58) of the vertical wall (30) and intended to intercept a jet of water directed toward the at least one valve (38, 40), the lower rim (62) comprising water drainage openings (65).

Battery Module

Resumen de: US20260269427A1

A battery module including a plurality of inner bus bars disposed in the bus bar frame and connected to at least one first electrode lead and at least one second electrode lead; a first terminal bus bar disposed in the bus bar frame and connected to the at least one first electrode lead; a second terminal bus bar disposed in the bus bar frame and connected to the at least one second electrode lead having an polarity opposite to the first terminal bus bar; a circuit board provided with a plurality of circuit joints; a joint member bonded to the second terminal bus bar; and a wire soldered to the first electrode lead and the circuit joint or soldered to the joint member and the circuit joint is provided.

BATTERY PACK AND METHOD FOR MANUFACTURING SAME

Nº publicación: US20260269394A1 10/09/2026

Solicitante:

PANASONIC ENERGY CO LTD [JP]
Panasonic Energy Co., Ltd.

Resumen de: US20260269394A1

A battery pack includes one or more secondary battery cells, an outer case that stores the one or more secondary battery cells, and a flame-retardant material interposed between the outer case and an end face of a secondary battery cell. The flame-retardant material is provided so that flame-retardant paper is folded to cover the secondary battery cell from an end face to a side face thereof and partially double-overlap at least the side face. This configuration in which the secondary battery cells are covered by folding the inexpensive flame-retardant paper can suppress leakage of flames to the outside of the outer case even in the event that the secondary battery cells catch fire.